With most things, silencers are about trade offs.
1. $$$
2. how quiet
3. use with more than one cartridge.
4. maintenance

Based on what I have read....
Degrote
1. $$$=ok
2. how quiet=ok, but there are better
3. use with more than one cartridge.= pretty good.
4. maintenance=not good for an all day range session, but great for one box of 22LR and then a box of 9mm.

What's interesting about the Nano is that there are ZERO reviews on youtube for this thing! Just the ones DeGroat himself put up a year and two ago...

I've got other prep-priorities right now but another suppressor is definitely on the list for the future...